CN102126604A - Spiral prepressing and aspirating method for vertical transfer of fine powdered materials - Google Patents
Spiral prepressing and aspirating method for vertical transfer of fine powdered materials Download PDFInfo
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- CN102126604A CN102126604A CN 201010611934 CN201010611934A CN102126604A CN 102126604 A CN102126604 A CN 102126604A CN 201010611934 CN201010611934 CN 201010611934 CN 201010611934 A CN201010611934 A CN 201010611934A CN 102126604 A CN102126604 A CN 102126604A
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Abstract
The invention relates to a spiral prepressing and aspirating method for the vertical transfer of fine powdered materials. In the invention, the wall (13) of a compression cylinder (1) with a variable outer diameter is regularly provided with a vacuumizing device (3) which comprises a bolt (9), a press plate (10), a vacuum pipe joint (11), a supporting plate (12), a sealing pad (14) and a micropore metal plate (15); the vacuumizing device is connected with a connecting hose (4) through the vacuum pipe joint, and then the connecting hose (4) is aggregated and connected to a double-direction reversing valve (6) and connected with a vacuumizing machine set (5); when fine powdered materials (8) enter the compression cylinder from a box body (17), the materials are spun through a spiral blade (2) to ensure that the fine powdered materials (8) are mutually collided to exhaust contained gas and sucked by the vacuumizing device so as to reduce the quantity of gas cavities in the fine powdered materials; and the unit volume density is improved, so that gas explosion phenomena probably being generated when a high-pressure molding machine (7) extrudes the fine powdered materials are reduced.
Description
Technical field
The invention belongs to the mass transport technical field, especially a kind of preloaded helical compression and air-exhaust method when being used for the tiny powdered material vertical transport.
Background technology
Along with the fast development of China's industrial technology, various fine grain granular materials (hereinafter to be referred as tiny powdered material) utilize the demand of vertical preload screw conveying technology also in continuous increase.
The granularity of tiny powdered material is smaller, can be mingled with many air and carry together in course of conveying.When the tiny powdered material that is mingled with air when high-pressure molding equipment pushes, the relative one by one gas " cavity volume " of the interior formation of tiny powdered material that is mingled with air, when this gas " cavity volume " when high-pressure forming machine pushes, " cavity volume " is subjected to rapid compressing and explosion takes place, and this phenomenon is called " gas explosion ".
If tiny powdered material is carried out precompressed by vertical preload screw conveying technology, will reduce the quantity of " cavity volume " in the tiny powdered material, reduce " gas explosion " phenomenon that when high-pressure forming machine pushes, produces simultaneously.
Problem is how to solve precompressed in the vertical preload screw conveying technology to make the gas that is extruded and successfully give off, become the great difficult problem of the vertical preload screw conveying technology development of restricting current, equally also affect the technological development direction of high-pressure forming machine, the technical research that high-pressure forming machine solves " gas explosion " phenomenon has been in advanced development.
The gaseous emission that is extruded in the vertical preload screw conveying technology also is in the development test stage, the thinking that solves is offered the mouth that gathers dust above vertical preload screw device, negative pressure by the extension set that gathers dust is handled the gaseous emission that is extruded, and may there be following problem in this thinking:
1. the collection efficiency of the body of calming the anger is low: because the technology that this thinking forms can't be taken the gas that is produced in the compression process away, cause the preloaded helical compression effect relatively poor.
2. utilize the negative pressure of the gather dust mouth and the extension set that gathers dust to handle mouthful body that near sub-fraction is calmed the anger that gathers dust, vertical preload screw device body that lower floor calms the anger then can't discharge, and body that lower floor calms the anger upwards or when moving down can influence preloaded helical compression efficient simultaneously.
Summary of the invention
For addressing the above problem, the invention provides a kind of preloaded helical compression and air-exhaust method when being used for the tiny powdered material vertical transport, this preloaded helical compression and air-exhaust method are implemented preloaded helical compression by the helicallobe that disposes to tiny powdered material in the vertical compression tube can reduce " cavity volume " quantity in the tiny powdered material, vacuumize the negative pressure that aperture apparatus produces and to extract the air that is mixed in the tiny powdered material by what on the vertical compression barrel, dispose, to strengthen the bulk density of tiny powdered material, issuable " gas explosion " phenomenon when reducing road high-pressure forming machine extruding down.
For achieving the above object, the present invention adopts following technical scheme:
A kind of preloaded helical compression and air-exhaust method when being used for the tiny powdered material vertical transport, this preloaded helical compression and air-exhaust method relate to the compression cylinder of vertical transport tiny powdered material, relate to the air port of gathering dust that tiny powdered material falls into preceding this casing that uses of compression cylinder and the configuration of this casing bottom, relate to the high-pressure forming machine of compression cylinder discharge end configuration, relate to two-way change-over valve and vacuumize unit, feature of the present invention is as follows:
In the compression cylinder of outer radius variable, dispose equal or the unequal or unequal helicallobe equal of blade pitch on the axis with blade diameter, the compression cylinder upper end of outer radius variable connects with described casing, and the compression cylinder discharge end of outer radius variable links to each other with the arrival end of described high-pressure forming machine; Around the compression cylinder barrel of outer radius variable, dispose several vacuum extractors by row by row from top to bottom, several vacuum extractors all connect with hose by the vacuum tube joint of its configuration, these hoses gather and are connected on the two-way change-over valve, two-way change-over valve with vacuumize unit and connect; When tiny powdered material enters compression cylinder when upper end from this casing, spinning through helicallobe makes tiny powdered material to the arrival end of compression cylinder discharge end vertical transport to high-pressure forming machine, because helicallobe is in spinning process, produce collision mutually between the tiny powdered material and can discharge contained gas in the tiny powdered material, thereby can reduce gas " cavity volume " quantity in the tiny powdered material, no matter being in any position of the compression cylinder of outer radius variable, the gas of being discharged all can be evacuated the device extraction, because this moment, vacuum extractor provided negative pressure by vacuumizing unit, the tiny powdered material bulk density that arrives the compression cylinder discharge end like this is enhanced, corresponding issuable " gas explosion " phenomenon when just having reduced high-pressure forming machine tiny powdered material being pushed.
Described preloaded helical compression and air-exhaust method when being used for the tiny powdered material vertical transport, the compression cylinder of outer radius variable or be the compression cylinder of isometrical shape, or be the compression cylinder of inverted cone-shaped, or be the compression cylinder of inverted cone-shaped+isometrical shape.
Described preloaded helical compression and air-exhaust method when being used for the tiny powdered material vertical transport, the pitch of helicallobe and diameter or equidistant and isometrical when compression cylinder is isometrical shape, or displacement and isometrical, the internal diameter of the diameter of helicallobe and isometrical shape compression cylinder coupling at this moment.
Described preloaded helical compression and air-exhaust method when being used for the tiny powdered material vertical transport, the pitch of helicallobe and diameter or equidistant and reducing when compression cylinder is inverted cone-shaped, or displacement and reducing, each section internal diameter of the reducing diameter of helicallobe and inverted cone-shaped compression cylinder coupling at this moment.
Described preloaded helical compression and air-exhaust method when being used for the tiny powdered material vertical transport, the pitch of helicallobe and each section internal diameter coupling of diameter and inverted cone-shaped+isometrical shape compression cylinder when compression cylinder is inverted cone-shaped+isometrical shape.
Described preloaded helical compression and air-exhaust method when being used for the tiny powdered material vertical transport, several vacuum extractors by row arrangement around the compression cylinder barrel of outer radius variable are called one group of vacuum extractor, vacuum extractor or be in twos is symmetrical arranged, or be asymmetric setting in twos, the number of described one group of vacuum extractor is an even number when being symmetrical arranged, and the number of described one group of vacuum extractor is two or more at least during asymmetric the setting; Around the compression cylinder barrel of outer radius variable, dispose the array vacuum extractor by row from top to bottom, the spacing between every two adjacent groups vacuum extractor or equal, or unequal; Each vacuum extractor comprises bolt, pressing plate, vacuum tube joint, stay bearing plate, packing seal and porous metal plate, the interior end of thread that ends at shaped as frame or circular base slab connects with porous metal plate by packing seal, the spacing of porous metal plate and packing seal implemented by shaped as frame or circular pressing plate, with pressing plate together with stay bearing plate together by on the barrel that is bolted to compression cylinder, form the pneumatosis cavity between pressing plate after fixing and the porous metal plate, the source of the gas of described pneumatosis cavity is provided by the vacuum tube joint that is installed on the pressing plate.
Because adopt aforesaid technical scheme, the present invention has following preceence:
1. preloaded helical compression of the present invention and air-exhaust method are particularly useful for fine-powdered coal dust after drying, and " gas explosion " phenomenon and the development of clean coal that are produced when high-pressure forming machine is solved the extruding of fine-powdered coal dust provide effective way.
2. by preloaded helical compression of the present invention and air-exhaust method, can make tiny powdered material in the spinning process of helicallobe, discharge contained gas in the tiny powdered material, greatly reduce the gas in the tiny powdered material " cavity volume " quantity, improved the bulk density of tiny powdered material.
3. by preloaded helical compression of the present invention and air-exhaust method, reduced high-pressure forming machine issuable in crumpling process " gas explosion " phenomenon to greatest extent, avoided improving the stability and the reliability of high-pressure forming machine operation owing to " gas explosion " phenomenon causes vibrations to high-pressure forming machine.
4, adopt preloaded helical compression of the present invention and air-exhaust method, can reduce the effective length of compression cylinder, the manufacturing cost of save compressed tube.
Description of drawings
Fig. 1 is the isometrical equidistant structural representation of helicallobe among the present invention.
Fig. 2 is the equidistant structural representation of helicallobe reducing among the present invention.
Fig. 3 is the structural representation of the isometrical displacement of helicallobe among the present invention.
Fig. 4 is the structural representation of helicallobe reducing displacement among the present invention.
Fig. 5 is the structural representation that helicallobe is used for the reducing compression cylinder among the present invention.
Fig. 6 is the structural representation of vacuum extractor.
Among the above-mentioned figure: the 1-compression cylinder; The 2-helicallobe; The 3-vacuum extractor; The 4-hose; 5-vacuumizes unit; The two-way change-over valve of 6-; The 7-high-pressure forming machine; The 8-tiny powdered material; The 9-bolt; The 10-pressing plate; The 11-vacuum tube joint; The 12-stay bearing plate; The 13-barrel; The 14-packing seal; The 15-porous metal plate; 16-pneumatosis cavity; This casing of 17-; The 18-air port of gathering dust.
The specific embodiment
Preloaded helical compression when the present invention is used for the tiny powdered material vertical transport and air-exhaust method relate to the compression cylinder of vertical transport tiny powdered material, relate to the air port of gathering dust that tiny powdered material falls into preceding this casing that uses of compression cylinder and the configuration of this casing bottom, relate to the high-pressure forming machine of compression cylinder discharge end configuration, relate to two-way change-over valve and vacuumize unit.
Preloaded helical compression of the present invention and air-exhaust method are as follows:
In conjunction with Fig. 1-5, in the compression cylinder 1 of outer radius variable, dispose equal or the unequal or unequal helicallobe 2 equal of blade pitch on the axis with blade diameter, the power that is used for helicallobe 2 rotations has belt-driving, gear transmission or the like, compression cylinder 1 upper end of outer radius variable connects with described casing 17, and compression cylinder 1 discharge end of outer radius variable links to each other with the arrival end of described high-pressure forming machine 7.
The compression cylinder 1 of above-mentioned outer radius variable or be the compression cylinder of isometrical shape is such as shown in figures 1 and 3; Or be the compression cylinder of inverted cone-shaped, such as Fig. 2 and shown in Figure 4; Or be the compression cylinder of inverted cone-shaped+isometrical shape, such as shown in Figure 5.
In conjunction with Fig. 1 and Fig. 3, the pitch of helicallobe 2 and diameter or equidistant and isometrical when compression cylinder 1 is isometrical shape, or displacement and isometrical, the internal diameter of the diameter of helicallobe 2 and isometrical shape compression cylinder 1 coupling at this moment.
In conjunction with Fig. 2 and Fig. 4, the pitch of helicallobe 2 and diameter or equidistant and reducing when compression cylinder 1 is inverted cone-shaped, or displacement and reducing, each section internal diameter of the reducing diameter of helicallobe 2 and inverted cone-shaped compression cylinder 1 coupling at this moment.
In conjunction with Fig. 5, each section internal diameter of the pitch of helicallobe 2 and diameter and inverted cone-shaped+isometrical shape compression cylinder coupling when compression cylinder 1 is inverted cone-shaped+isometrical shape.
Owing to dispose helicallobe 2 on the axis in compression cylinder 1, the axial effective length of compression cylinder 1 can obtain shortening or reducing the manufacturing cost of having saved compression cylinder 1.
Around compression cylinder 1 barrel 13 of outer radius variable, dispose several vacuum extractors 3 by row by row from top to bottom, several vacuum extractors 3 all connect with hose 4 by the vacuum tube joint 11 of its configuration, these hoses 4 gather and are connected on the two-way change-over valve 6, two-way change-over valve 6 with vacuumize unit 5 and connect.
Several vacuum extractors 3 by row arrangement (also can be understood as the barrel 13 of compression cylinder 1 same radial section disposed several vacuumize aperture apparatus 3) around compression cylinder 1 barrel 13 of outer radius variable are called one group of vacuum extractor, vacuum extractor or be in twos is symmetrical arranged, or be asymmetric setting in twos, the number of described one group of vacuum extractor is an even number when being symmetrical arranged, and the number of described one group of vacuum extractor is two or more at least during asymmetric the setting.
Around compression cylinder 1 barrel 13 of outer radius variable, dispose the array vacuum extractor by row from top to bottom, the spacing between every two adjacent groups vacuum extractor or equal, or unequal.
Each vacuum extractor 3 comprises bolt 9, pressing plate 10, vacuum tube joint 11, stay bearing plate 12, packing seal 14 and porous metal plate 15, the interior end of thread that ends at shaped as frame or circular base slab 12 connects with porous metal plate 15 by packing seal 14, the spacing of porous metal plate 15 and packing seal 14 implemented by shaped as frame or circular pressing plate 10, consider porous metal plate 15 normal and tiny powdered material 8 generation frictions, so porous metal plate 15 is made by metal, also can be made by non-metal according to its porous metal plate 15 of difference of medium.Pressing plate 10 together is fixed on the barrel 13 of compression cylinder 1 by bolt 9 together with stay bearing plate 12, form pneumatosis cavity 16 between pressing plate 10 after fixing and the porous metal plate 15, the source of the gas of described pneumatosis cavity 16 is provided by the vacuum tube joint 11 that is installed on the pressing plate 10.
When tiny powdered material 8 when this casing 17 enters compression cylinder 1 upper end, spinning through helicallobe 2 makes tiny powdered material 8 to the arrival end of compression cylinder 1 discharge end vertical transport to high-pressure forming machine 7, because helicallobe 2 is in spinning process, produce collision compression mutually between the tiny powdered material 8 and can discharge contained gas in the tiny powdered material, thereby can reduce gas " cavity volume " quantity in the tiny powdered material 8, no matter being in compression cylinder 1 any position of outer radius variable, the gas of being discharged all can be evacuated device 3 extractions, because this moment, vacuum extractor 3 provided negative pressure by vacuumizing unit 5, tiny powdered material 8 bulk density that arrive compression cylinder 1 discharge end like this are enhanced, corresponding issuable " gas explosion " phenomenon when just having reduced 8 extruding of 7 pairs of tiny powdered materials of high-pressure forming machine.
The process that vacuum extractor 3 is bled is: produce certain negative pressure by the work that vacuumizes unit 5, make leak free negative pressure cavity volume of formation in the pneumatosis cavity 16 by hose 4, vacuum connection tube joint 11, negative pressure in the pneumatosis cavity volume 16 is pushed the gas and the high-pressure forming machine 7 interior part air that produced of discharging by tiny powdered material 8 in 15 pairs of compression cylinders of porous metal plate 1 and is taken away, thereby improves the bulk density of tiny powdered material 8.
After vacuum extractor 3 aspirated a period of times, the superfine powder in the tiny powdered material 8 was known from experience the part micropore obstruction that makes in the porous metal plate 15, then needs porous metal plate 15 is carried out blowback, removes the superfine powder that is retained in the porous metal plate 15 part micropores.Blowback process to porous metal plate 15 is: by change-over valve 6 commutations, make and vacuumize unit 5 generation malleations, make the uniform barotropic gas of pneumatosis cavity 16 inner generations by hose 4, vacuum tube joint 11, this barotropic gas carries out blowback, cleaning to the micropore eyelet of porous metal plate 15, and is blocked with the micropore eyelet that prevents porous metal plate 15.
In vacuum, vacuumizing 5 need of unit through measuring and calculating provides the positive and negative pressure of 0.2-0.5MPa just can satisfy blowback or vacuum action in the compression cylinder 1.The time of each blowback only needs 3-10 second.
Because method of the present invention is all carried out, and can reduce the Dust Capacity with the gas exhaust to atmosphere, thereby reduce the pollution of air under sealing state.Because employing method of the present invention can reduce the cavity volume volume and the corresponding size of compression cylinder 1, also just reduce the space occupancy of compression cylinder 1 simultaneously, had vast market prospect.
The present invention carefully is primarily aimed at gas that tiny powdered material produced improves compression cylinder 1 by the technology that vacuumizes discharge efficiency in preload screw precompressed process, improve the precompressed efficient of preload screw, make tiny powdered material obtain increasing by the unit intensity after the preload screw, the Dust Capacity of exhaust to atmosphere is able to very big reduction.
Claims (6)
1. a preloaded helical compression and air-exhaust method when being used for the tiny powdered material vertical transport, this preloaded helical compression and air-exhaust method relate to the compression cylinder (1) of vertical transport tiny powdered material (8), relate to the air port of gathering dust (18) that tiny powdered material falls into preceding this casing (17) that uses of compression cylinder and the configuration of this casing bottom, relate to the high-pressure forming machine (7) of compression cylinder discharge end configuration, relate to two-way change-over valve (6) and vacuumize unit (5), it is characterized in that:
In the compression cylinder (1) of outer radius variable, dispose equal or the unequal or unequal helicallobe (2) equal of blade pitch on the axis with blade diameter, the compression cylinder of outer radius variable (1) upper end connects with described casing (17), and the compression cylinder of outer radius variable (1) discharge end links to each other with the arrival end of described high-pressure forming machine (7); Compression cylinder (1) barrel (13) at outer radius variable disposes several vacuum extractors (3) by row by row on every side from top to bottom, several vacuum extractors (3) all connect with hose (4) by the vacuum tube joint (11) of its configuration, these hoses (4) gather and are connected on the two-way change-over valve (6), two-way change-over valve (6) with vacuumize unit (5) and connect; When tiny powdered material (8) enters compression cylinder (1) when upper end from this casing (17), spinning through helicallobe (2) makes tiny powdered material (8) to the arrival end of compression cylinder (1) discharge end vertical transport to high-pressure forming machine (7), because helicallobe (2) is in spinning process, produce collision mutually between the tiny powdered material (8) and can discharge contained gas in the tiny powdered material (8), thereby can reduce gas " cavity volume " quantity in the tiny powdered material (8), no matter being in any position of compression cylinder (1) of outer radius variable, the gas of being discharged all can be evacuated device (3) extraction, because vacuum extractor this moment (3) provides negative pressure by vacuumizing unit (5), tiny powdered material (8) bulk density that arrives compression cylinder (1) discharge end like this is enhanced, corresponding issuable " gas explosion " phenomenon when just having reduced high-pressure forming machine (7) tiny powdered material (8) being pushed.
2. preloaded helical compression when being used for the tiny powdered material vertical transport according to claim 1 and air-exhaust method, it is characterized in that: the compression cylinder of outer radius variable (1) or be the compression cylinder of isometrical shape, or be the compression cylinder of inverted cone-shaped, or be the compression cylinder of inverted cone-shaped+isometrical shape.
3. preloaded helical compression when being used for the tiny powdered material vertical transport as claimed in claim 1 or 2 and air-exhaust method, it is characterized in that: when the pitch and the diameter or equidistant and isometrical of compression cylinder (1) helicallobe (2) when being isometrical shape, or displacement and isometrical, the diameter of helicallobe this moment (2) and the internal diameter of isometrical shape compression cylinder (1) coupling.
4. preloaded helical compression when being used for the tiny powdered material vertical transport as claimed in claim 1 or 2 and air-exhaust method, it is characterized in that: when pitch and diameter or equidistant and the reducing of compression cylinder (1) helicallobe (2) when being inverted cone-shaped, or displacement and reducing, the reducing diameter of helicallobe this moment (2) and each section internal diameter of inverted cone-shaped compression cylinder (1) coupling.
5. preloaded helical compression when being used for the tiny powdered material vertical transport as claimed in claim 1 or 2 and air-exhaust method is characterized in that: each section internal diameter of the pitch of helicallobe (2) and diameter and inverted cone-shaped+isometrical shape compression cylinder (1) coupling when compression cylinder (1) is inverted cone-shaped+isometrical shape.
6. preloaded helical compression when being used for the tiny powdered material vertical transport as claimed in claim 1 or 2 and air-exhaust method, it is characterized in that: compression cylinder (1) barrel (13) at outer radius variable is called one group of vacuum extractor by several vacuum extractors of row arrangement on every side, vacuum extractor or be in twos is symmetrical arranged, or be asymmetric setting in twos, the number of described one group of vacuum extractor is an even number when being symmetrical arranged, and the number of described one group of vacuum extractor is two or more at least during asymmetric the setting; Compression cylinder (1) barrel (13) at outer radius variable disposes the array vacuum extractor by row on every side from top to bottom, the spacing between every two adjacent groups vacuum extractor or equal, or unequal; Each vacuum extractor (3) comprises bolt (9), pressing plate (10), vacuum tube joint (11), stay bearing plate (12), packing seal (14) and porous metal plate (15), the interior end of thread that ends at shaped as frame or circular base slab (12) connects with porous metal plate (15) by packing seal (14), the spacing of porous metal plate (15) and packing seal (14) implemented by shaped as frame or circular pressing plate (10), pressing plate (10) together is fixed on the barrel (13) of compression cylinder (1) by bolt (9) together with stay bearing plate (12), form pneumatosis cavity (16) between pressing plate (10) after fixing and the porous metal plate (15), the source of the gas of described pneumatosis cavity (16) is provided by the vacuum tube joint (11) that is installed on the pressing plate (10).
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| Application Number | Priority Date | Filing Date | Title |
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| CN2010106119340A CN102126604B (en) | 2010-12-29 | 2010-12-29 | Spiral prepressing and aspirating method for vertical transfer of fine powdered materials |
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| CN2010106119340A CN102126604B (en) | 2010-12-29 | 2010-12-29 | Spiral prepressing and aspirating method for vertical transfer of fine powdered materials |
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| CN102126604A true CN102126604A (en) | 2011-07-20 |
| CN102126604B CN102126604B (en) | 2012-11-07 |
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Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104694193A (en) * | 2015-03-23 | 2015-06-10 | 中国神华能源股份有限公司 | Forming machine system and coal drying, quality improving and hot press molding method |
| CN105861090A (en) * | 2016-03-31 | 2016-08-17 | 神华集团有限责任公司 | Pulverized coal molding apparatus and molding method |
| CN111216933A (en) * | 2020-01-20 | 2020-06-02 | 河南工业大学 | Ultrafine powder variable-diameter variable-pitch spiral feeding and micro-negative pressure degassing device |
Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN2448706Y (en) * | 2000-11-10 | 2001-09-19 | 常州市四维理工自动化设备有限公司 | Degasifier for ultrafine powder package machine |
| CN2637340Y (en) * | 2003-08-26 | 2004-09-01 | 江苏南大紫金智能科技有限公司 | Powder material vacuum degassing device |
| CN2883176Y (en) * | 2006-02-14 | 2007-03-28 | 王忠信 | Pilotless plane with circular wings and inclined rotary wings |
| CN101012031A (en) * | 2007-02-01 | 2007-08-08 | 中国科学技术大学 | Pressurization trace quantity helix powder feeding equipment |
-
2010
- 2010-12-29 CN CN2010106119340A patent/CN102126604B/en active Active
Patent Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN2448706Y (en) * | 2000-11-10 | 2001-09-19 | 常州市四维理工自动化设备有限公司 | Degasifier for ultrafine powder package machine |
| CN2637340Y (en) * | 2003-08-26 | 2004-09-01 | 江苏南大紫金智能科技有限公司 | Powder material vacuum degassing device |
| CN2883176Y (en) * | 2006-02-14 | 2007-03-28 | 王忠信 | Pilotless plane with circular wings and inclined rotary wings |
| CN101012031A (en) * | 2007-02-01 | 2007-08-08 | 中国科学技术大学 | Pressurization trace quantity helix powder feeding equipment |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104694193A (en) * | 2015-03-23 | 2015-06-10 | 中国神华能源股份有限公司 | Forming machine system and coal drying, quality improving and hot press molding method |
| CN105861090A (en) * | 2016-03-31 | 2016-08-17 | 神华集团有限责任公司 | Pulverized coal molding apparatus and molding method |
| CN111216933A (en) * | 2020-01-20 | 2020-06-02 | 河南工业大学 | Ultrafine powder variable-diameter variable-pitch spiral feeding and micro-negative pressure degassing device |
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| CN102126604B (en) | 2012-11-07 |
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